29a29d55f032057c27090196e48c2cad52bd5bc46642513a344879b95a81f5d6

Analysis

max time kernel
151s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-03-2023 20:58

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General

Target

V4.exe
Size

11.4MB
MD5

2d0cb9ec97e5abac40a692aab91689c4
SHA1

82b37f06255d3c8ec5e088fe5cf7f58fdf27b601
SHA256

29a29d55f032057c27090196e48c2cad52bd5bc46642513a344879b95a81f5d6
SHA512

33448e712588550d5e77535be52e2e653cd67ffa3e928182d8af68530db3e06960614e7bafcb4c5c66776f72e79954776641406b2e7f0d4946ee7794aceb5d3c
SSDEEP

196608:76u3qVKcZ40PqqTOtfsLabW1RoNOL4CRRPG8uVfYW47ZIcZYM2mFIoNqcqT/Cg:76u6C0PqQOtEmbWbhRPG8uVwW4ecZxmD

Score

9^/10

evasion themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

V4.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ V4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	V4.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

V4.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	V4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	V4.exe

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/848-54-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-55-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-56-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-57-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-58-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-59-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-60-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-61-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-62-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida
behavioral1/memory/848-63-0x000000013FF80000-0x00000001416F0000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

V4.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA V4.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

V4.exe

pid process

848 V4.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1276 848 WerFault.exe V4.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

V4.exe

description pid process

Token: SeDebugPrivilege 848 V4.exe
Token: SeDebugPrivilege 848 V4.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	V4.exe

pid	process
848	V4.exe

pid	pid_target	process	target process
1276	848	WerFault.exe	V4.exe

description	pid	process
Token: SeDebugPrivilege	848	V4.exe
Token: SeDebugPrivilege	848	V4.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

V4.exe

description	pid	process	target process
PID 848 wrote to memory of 1276	848	V4.exe	WerFault.exe
PID 848 wrote to memory of 1276	848	V4.exe	WerFault.exe
PID 848 wrote to memory of 1276	848	V4.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\V4.exe
"C:\Users\Admin\AppData\Local\Temp\V4.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 848 -s 368
2⤵
- Program crash
PID:1276

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/848-54-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-55-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-56-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-57-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-58-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-59-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-60-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-61-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-62-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download
memory/848-63-0x000000013FF80000-0x00000001416F0000-memory.dmp

Filesize
23.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads